good description ;-)

Solution: Each line contains a character from the giveaway code. It is marked with a Left-to-right mark (LRM), which is an invisible Unicode formatting character. In the solution below I replaced each LRM with an arrow ("→"). To the left of each LRM you can find the GA character, marked in bold.

Dolores R. Th→ompson
9L8Q7iEBIB→queT
B6D0→cZ2WLJTk
Regina Bergamasc→hi
Celeste L. Jarv→is

So how is one supposed to find an invisible character? There were at least 6 different methods that people who solved the puzzle used. You can read about them in the GA comments. The method that I expected people to use is:

1. Copy the 5 lines of text to a text editor (e.g. Notepad)
2. Use the arrow key to scan each line.
3. Whenever the cursor doesn't move with a key press, it's a hidden character (in this case, LRM).
4. Take note of the character to the left of the hidden mark.
5. Append the 5 characters as described in the first hint above.

That's all :-)